local ideas to git

src/socketrunnable.cpp

@@ -0,0 +1,118 @@
+/*
+3proxy-eagle: Accumulate ethical 3proxy statistics with web interface.
+Source code: https://notabug.org/acetone/3proxy-eagle.
+Copyright (C) 2022, acetone
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "socketrunnable.h"
+#include "g.h"
+#include "webpage.h"
+
+#include <QRegularExpression>
+
+constexpr const int getValueBeforeSpaceLIMIT = 200;
+constexpr const int getValueBeforeBodyLIMIT = 1000;
+
+SocketRunnable::SocketRunnable(qintptr socketDescriptor, QObject *parent) :
+    SocketRunnableBase(socketDescriptor, parent)
+{
+}
+
+void SocketRunnable::get()
+{
+    if (urlPath() == "/index.html")
+    {
+        httpDocument().setBody(WebPage::document());
+        return;
+    }
+
+    QString eTag = g::getValue(m_headers, "If-None-Match", g::GetValueType::HttpHeader);
+
+    if (urlPath() == "/main.css")
+    {
+        httpDocument().setBody(QFile(":/html/main.css"), eTag);
+    }
+    else
+    {
+        httpDocument().setBody(QFile(g::p::WORKING_DIR + "/html" + urlPath()), eTag);
+    }
+}
+
+void SocketRunnable::reader()
+{
+    QString reqType = getValueBeforeSpace();
+    m_urlPath = QByteArray::fromPercentEncoding( getValueBeforeSpace().toUtf8() );
+    if (m_urlPath.contains(".."))
+    {
+        // Possible attempt to explore server directories
+        httpDocument().setCode(HttpDocument::Code::_404);
+        httpDocument().setBodySingleHTMLLabel("What you where looking for is not here", "Not found");
+        return;
+    }
+
+    if (m_urlPath == "/")
+    {
+        m_urlPath = "/index.html";
+    }
+    m_headers = getValueBeforeBody();
+
+    if (reqType == "GET")
+    {
+        get();
+    }
+    else if (reqType != "HEAD")
+    {
+        httpDocument().setCode(HttpDocument::Code::_400); // default code is 200
+    }
+
+    setDataToWrite(httpDocument().document());
+}
+
+QString SocketRunnable::getValueBeforeSpace()
+{
+    QString result;
+    char symbol {0};
+    qint64 tail = socket()->read(&symbol, 1);
+    while (symbol != ' ' and tail > 0)
+    {
+        if (result.size() > getValueBeforeSpaceLIMIT)
+        {
+            qDebug() << "Parsing error: TYPE or URL length >" << getValueBeforeSpaceLIMIT;
+            break;
+        }
+        result += symbol;
+        tail = socket()->read(&symbol, 1);
+    }
+    return result;
+}
+
+QString SocketRunnable::getValueBeforeBody()
+{
+    QString result;
+    char symbol {0};
+    qint64 tail = socket()->read(&symbol, 1);
+    while (not result.endsWith("\r\n\r") and tail > 0)
+    {
+        if (result.size() > getValueBeforeBodyLIMIT)
+        {
+            qDebug() << "Parsing error: headers length >" << getValueBeforeBodyLIMIT;
+            break;
+        }
+        result += symbol;
+        tail = socket()->read(&symbol, 1);
+    }
+    return result;
+}